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/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.service.autofill;
import android.annotation.NonNull;
import android.annotation.SuppressLint;
import android.content.Context;
import android.os.RemoteException;
import android.util.Log;
import android.util.MathUtils;
import android.view.MotionEvent;
import android.view.ViewConfiguration;
import android.widget.FrameLayout;
/**
* This class is the root view for an inline suggestion. It is responsible for
* detecting the click on the item and to also transfer input focus to the IME
* window if we detect the user is scrolling.
*
* @hide
*/
@SuppressLint("ViewConstructor")
public class InlineSuggestionRoot extends FrameLayout {
private static final String TAG = "InlineSuggestionRoot";
private final @NonNull IInlineSuggestionUiCallback mCallback;
private final int mTouchSlop;
private float mDownX;
private float mDownY;
public InlineSuggestionRoot(@NonNull Context context,
@NonNull IInlineSuggestionUiCallback callback) {
super(context);
mCallback = callback;
mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
setFocusable(false);
}
@Override
@SuppressLint("ClickableViewAccessibility")
public boolean dispatchTouchEvent(@NonNull MotionEvent event) {
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN: {
mDownX = event.getX();
mDownY = event.getY();
}
// Intentionally fall through to the next case so that when the window is obscured
// we transfer the touch to the remote IME window and don't handle it locally.
case MotionEvent.ACTION_MOVE: {
final float distance = MathUtils.dist(mDownX, mDownY,
event.getX(), event.getY());
final boolean isSecure = (event.getFlags()
& MotionEvent.FLAG_WINDOW_IS_PARTIALLY_OBSCURED) == 0;
if (!isSecure || distance > mTouchSlop) {
try {
mCallback.onTransferTouchFocusToImeWindow(getViewRootImpl().getInputToken(),
getContext().getDisplayId());
} catch (RemoteException e) {
Log.w(TAG, "RemoteException transferring touch focus to IME");
}
}
} break;
}
return super.dispatchTouchEvent(event);
}
}
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